// 实现这个项目的构建任务

const { src, dest, parallel, series, watch } = require('gulp')
const del = require('del')
const browserSync = require('browser-sync');
const loadPlugins = require('gulp-load-plugins');
const plugins = loadPlugins()// 自动加载插件
const bs = browserSync.create()
const data = {
    menus: [
        {
            name: 'Home',
            icon: 'aperture',
            link: 'index.html'
        },
        {
            name: 'Features',
            link: 'features.html'
        },
        {
            name: 'About',
            link: 'about.html'
        },
        {
            name: 'Contact',
            link: '#',
            children: [
                {
                    name: 'Twitter',
                    link: 'https://twitter.com/w_zce'
                },
                {
                    name: 'About',
                    link: 'https://weibo.com/zceme'
                },
                {
                    name: 'divider'
                },
                {
                    name: 'About',
                    link: 'https://github.com/zce'
                }
            ]
        }
    ],
    pkg: require('./package.json'),
    date: new Date()
}
const clean = () => {
    return del(['dist', 'temp'])
}
// 样式编译
const style = () => {
    return src('src/assets/styles/*.scss', { base: 'src' })
        .pipe(plugins.sass({ outputStyle: 'expanded' }))
        .pipe(dest('dist'))
}
// 脚本编译
const script = () => {
    return src('src/assets/scripts/*.js', { base: 'src' })
        .pipe(plugins.babel({ presets: ['@babel/preset-env'] }))
        .pipe(dest('dist'))
}
// 页面模板编译
const page = () => {
    return src('src/*.html', { base: 'src' })
        .pipe(plugins.swig({ data }))
        .pipe(dest('dist'))
}
// 图片和文字编译
const image = () => {
    return src('src/assets/images/**', { base: 'src' })
        .pipe(plugins.imagemin())
        .pipe(dest('dist'))
}
const font = () => {
    return src('src/assets/fonts/**', { base: 'src' })
        .pipe(plugins.imagemin())
        .pipe(dest('dist'))
}
// 其他文件以及文件清除
const extra = () => {
    return src('public/**', { base: 'public' })
        .pipe(dest('dist'))
}

const serve = () => {
    watch('src/assets/styles/*.scss', style)
    watch('src/assets/scripts/*.js', script)
    watch('src/*.html', page)
    // watch('src/assets/images/**', image)
    // watch('src/assets/fonts/**', font)
    // watch('public/**', extra)
    watch([
        'src/assets/images/**',
        'src/assets/fonts/**',
        'public/**'
    ], bs.reload)

    bs.init({
        notify: false,
        port: 2080,
        // open: false,
        // files: 'dist/**',
        server: {
            baseDir: ['dist', 'src', 'public'],
            routes: {
                '/node_modules': 'node_modules'
            }
        }
    })
}
const compile = parallel(style, script, page, image, font);

const build = series(clean, parallel(compile, extra))
module.exports = {
    clean,
    compile,
    build,
    serve
}